Fuel pump

Details Fuel pump Fuel pump

2007-09-04

2007-09-04

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

With means for re-entry of working fluid to blade set

Turbine regenerative pump

Reexamination Certificate

active

10851732

ABSTRACT:
A fuel pump in which fuel can pass smoothly through through-holes of an impeller is taught. Through-holes communicate concavities formed in upper and lower faces of the impeller. These through-holes are formed at an inner side region within the concavities. When the impeller rotates, the rotational speed of the portion provided with the through-holes is slower than in the case where these through-holes are formed at the outer side region within the concavities. As a result, the fuel in the vicinity of the through-holes within the concavity has a slower rotational speed, and consequently the fuel passes easily through the through-holes.

REFERENCES:
patent: 6309173 (2001-10-01), Marx
patent: 6464450 (2002-10-01), Fischer
patent: 6638009 (2003-10-01), Honma
patent: 6733230 (2004-05-01), Miura et al.
patent: 2004/0136823 (2004-07-01), Baek et al.
patent: 89 11 302.0 (1991-01-01), None
patent: 197 44 037 (1991-01-01), None
patent: 01-177492 (1989-07-01), None
patent: WO99/07990 (1989-02-01), None
U.S. Appl. No. 10/808,638, unpublished Aisan Ind C Ltd.

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